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    • Tonight

      Sep 25

      55° Lo
      Cloudy, a shower or t-storm
      • Stargazing
      • Weather
      • Cloud Cover: 96%
      • Precip: 57%
      • Hours of Precip: 1.5
      More
    • Mon

      Sep 26

      68° /45°F
      Mostly sunny and cooler
      • Excellent
      • for stargazing
      • Cloud Cover: 3%
      • Precip: 9%
      • Hours of Precip: 0
    • Tue

      Sep 27

      66° /47°
      Partly sunny, breezy and cool
      • Fair
      • for stargazing
      • Cloud Cover: 70%
      • Precip: 20%
      • Hours of Precip: 0
      More
    • Wed

      Sep 28

      65° /51°
      Clouds and sun with a shower
      • Excellent
      • for stargazing
      • Cloud Cover: 7%
      • Precip: 0%
      • Hours of Precip: 1
      More
    • Thu

      Sep 29

      70° /52°
      Mostly sunny and beautiful
      • Good
      • for stargazing
      • Cloud Cover: 48%
      • Precip: 55%
      • Hours of Precip: 0.5
      More
    68°/61° RealFeel® 67°/58°
    Cooler
    • 14 mph
    • Precipitation: 5%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 45%
    • Cloud Cover: 18%
    • Dew Point: 43° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/26/2015
    High 68° 73° 91° (1999) 81°
    Low 45° 49° 25° (1928) 56°

    Sunrise/Sunset

    • Sunrise: 6:48 AM
    • Sunset: 6:44 PM
    • Duration: 11:56 hr

    Moonrise/Moonset

    • Moonrise: 2:24 AM
    • Moonset: 4:35 PM
    • Duration: 14:11 hr
    Astronomy

    Solunar Information for Ottawa, IL

    Sat, Oct 1
    New
    Sun, Oct 9
    First
    Sun, Oct 16
    Full
    Sat, Oct 22
    Last

    Ottawa Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 25, 2016; 8:13 PM ET

    Gusty winds will accompany a push of chilly air across the Great Lakes from Sunday night through Tuesday. More >

    Mon. Stargazing